Die-separating means



' l, 22, March 29,1927. R. LIWILCOX v 6 936 DIE SEPARATING MEANS Filed Jan. l5, -l9 Sheets-Sheet 1 1 22 March 29, 1927. R. L. WILCOX. I

DIE SEPARATING MEANS Filed Jan. 15, 43923 2 Sheets-Sheet? Patented Mar. 29, 1927.

UNITED" STATESv PAT T RICHARD LESTER. W'ILCOX, OF \VATER-BURY, CONNECTICUT, ASSIGNOR- TO- THE WATERBURY FARREL FOUNDRY AND MACHINECOMPANY, OF WATERBURY, CON- NECTICUT, A CORPORATION OF CONNECTICUT.

mn-snrnn-A'rrne MEANS;

Application filed January 15, 1323. Serial No. 612,837.

This invention relates to new and improved die separating means referring more particularly to such mechanism as is utilized in separating the dies of an open die heading, upsettingmachine, or the like.

It is the object of this invention, among other things, to provide such means as will open. or separate the dies whenin predeter mined position by a yielding pressure and intimed relation with the movement of said dies to relax said pressure, to so arrange the parts thereof as not to interfere with the removal of the die cap or cover, and to produce a device that may be applied and utilized in a heading, upsetting machine, or the like, of conventional form and type without material alteration therein.

To these and other ends my invention consists in the die separating means, having certain details of construction and combinations of'parts as will be hereinafter de scribed and more particularly pointed out in the claims.

Referring to the drawings in which like numerals of reference designate like parts in the several figures:

Figure 1 is a fragn'ientary side elevation of a heading. upsetting machine, or the like, having my improved mechanism attached thereto;

FigureQ' is a fragmentary plan view thereof;

Figure '3' is a sectional elevation thereof, taken generally upon line 3-3 of Figure 2; and

Figure 4 is a detail view of the upper end of one of the separating pins with some of its adjacent mechanism.

Heretofore in open die headers the dies are separated slightly from each other at the feed line, that is, at the point where the wire rod or length is fed therebetween and when so separated each die is substantially equally distant from said feed line. After the wire rod or length has been fed between the dies a. portion thereof is cut off and then becomes a blank which is transferred to the upsetting line.

The means generally used heretofore for separating the dies comprises one or more pins, each of which isheld under the constant pressure of a spr ng and the lower pointed end of which is in the path of movement of the dies.

The longitudinalcorners of the d-i'es are angular so that when the meeting faces of.

the dies are together, a substantially V- shaped groove in cross section is forced therebetween at the upper edgethereof. When this groove registers with the lower pointed, end of the separating pins, the. spring forces the same downwardly into the. groove and by the continued pressure of thespring forces the dies apart. Thusat the feed line there is an open space between.

the dies that facilitates the feeding ofthe wire rod or length therebetween,

, The movement of the dies and the opera ported upon a plate 15 and having a wearing plate 16 upon the top side thereof; These dies are held against upwardmovement by a cap or cover 17 held in position relatively to the body 10 by one or more clamps 18. through which are the separating pins 19, each having a lower pointed endQO.

The dies are moved laterally, by means not herein shown, between the plates 15 and 16 from the feed. line, which is generally perpendicular with the axis of the pins 19,

toward the upsetting line, at which line the dies are located in Figure 3.

In the cap or cover 17 is a'shaft 21, upon which is a rock lever 22 opposite the center of the three separating pins 19. 7 Obviously a greater or less number of separating pins may be used as desired.

This rock lever is provided with an arm 23 having a head 29, with rounded outer walls, one of which contacts with the upper end of the center of the three separating pins 19, a downwardly projecting arm 24, and a lug'25, secured in which is a rod 26 that'projects laterally upon either side thereof and engages the under side of each of the rock levers 27, also upon the shaft 21.

Each of the rock levers 27 is provided with die 14 the follower die, both of which are supa head 28 corresponding in general shape and size with that of the head 29 of the lever 22, and each having contact with one of the separating pins 19.

A plurality of flat springs 30 corresponding in number with the separating pins 19 are arranged substantially as shown in F 1gure 3, the outer end of each bearing against one of the rounded walls 2829 of the head of the rock levers 22 and 27 and the other resting upon a shelf 31 upon the cap or cover 17, or an adjacent part, the tension of the springs being varied by the set screws 32.

Movably mounted within the bed 10 is a plunger 33, the inner end of which con tacts with the arm 24, and the outer end is in the path of movement of the set screw 34. A spring 35 surrounding this plunger having contact at one end with a collar 36, exerts its tension so as to maintain an outward pressure upon said plunger, thus keeping the outer end thereof in contact with the set screw 34.

Slidably mounted in one side of the bed 10 is a cam slide 37, which receives a re ciprocating motion from the rock arm 12, through the link 38, pivotally connected therewith and with said rock arm. This cam slide is provided on its outer edge with a cam face 39.

Also secured to said bed and forming a support for one side of said cam slide 37 is a cover plate 40, having a lug 41 thereon between which a rock lever 42 having the arms 43 and 44 thereon, is journaled, upon the stud 45 fixed in said lugs. In the arm 43 is a cam roll 46 which rides against the outer face of the cam slide 37, and in the other arm is the screw 34 threaded therethrough and having a jamb nut 47 thereon.

In operation as the dies approach the feed line, the springs 30 move the separating pins 19 downwardly and the lower pointed ends 20 thereof engage the angular corners of the dies 13 and 14 and hold the same apart in relation to the wire feed line. After the material (wire rod or length) has been fed between the dies, the cam slide 37 has been moved into such position through the action of the rock arm 12 that the cam roll 46 will ride up the cam face 39 of said cam slide and thus actuate the rock lever 42. This imparts an endwise movement to the plunger 33 and an oscillating movement to the rock levers 22 and 27, thus lifting the outer ends of the springs 30 upwardly and entirely removing the tension thereof from the separating pins.

The tension of the springs is relaxed until, during the reverse movement of the cam slide 37, the roll 46 rides down the cam face 39, thus permitting the spring 35 to move the plunger 33 outwardly and the tension of the springs 30 is again applied to the levers 22 and 27.

With this mechanism there is no tension upon the dies through the separating pins except at such times as are essential for the separating pins to perform their function.

The separating pins and the parts adjacent thereto are all mounted in the cap or cover 17 with the exception of the plunger 33, which is fixed therebetween. The cap or cover therefore when moved will carry with it substantially all of the separating pin operating mechanism as a unit, an opening 48 in the cap or cover permitting the same to pass by the inner end of the plunger 33.

If desired a stop pin 49, or other similar means, may he provided to limit the downward position of the separating pins.

What I claim as new and desire to secure bp Letters Patent, is:

1. In a heading or upsetting machine, or the like, a plurality of co0perating dies reciprocating between different positions; a member for separating the dies at a predetermined position; a yielding part for imparting movement to the member in one direction; and means for relaxing the tension of the yielding part.

2. In a device of the character described, the coiubimtion with companion dies that move from the feed line to the upsetting line and from the upsetting line to the feed line; mean for separating the dies at the feed line; and means for releasing the die separating means in timed relation to the movement of the dies.

In a heading or upsetting machine, or the like; a plurality of co-operating dies reciprocating *etween different positions; a member for separating the dies thereof at a predetermined position; a yielding part for in'iparting movement to the member in one direction; and means having contact with the yielding part for relaxing the tension thereof upon the member.

4. In a heading or upsetting machine, or the like; a plurality of co-operating dies reciprocating between different positions; a member for separating the dies thereof at a predetermined position; a yielding part for imparting movement to the member in one direction; and means having contact with the member and yielding part for relaxing the tension of the yielding part upon the member.

5. In a heading or upsetting machine, or the like; a plurality of co-operating dies reciprocating between different positions; a die cap or cover; a member for seperating the dies thereof at a predetermined position; a yielding part for imparting movement to the member in one direction, whereby pressure is applied to the dies; and means for relaxing the pressure of the member upon the dies in timed relation with the movement of the dies, the mei'nber and yielding part beingassociated as a unit with the cap or COVGI'.

6. In a heading or upsetting machine, or the like; a plurality of co-operating dies reciprocating between different positions; a member for separating the dies thereof at a predetermined position; a yielding part for imparting movement to the member in one direction, whereby pressure is applied to the dies; and means for relaxing such pressure in timed relation withthe movement of the dies, comprising in part a rock member and means for actuating the same.

7. In a heading or upsetting machine, or the like; a plurality of co-operating dies reciprocating between different positions; a member for separating the dies thereof at a predetermined position; a yielding part for imparting movement to the member in one direction, whereby pressure is applied to the dies at the predetermined position; means for relaxing the pressure of the member upon the "dies, comprising in part a rock member; and means for positively actuating the rock member.

8'. In a heading or upsetting machine, or the like; a plurality of cooperating dies reciprocating between different positions; a die cap or cover a member mounted therein for separating the dies at a predetermined position; a yielding part for imparting movement to the member connected with the die cap or cover, whereby pressure is applied to the dies at the predetermined position; and means in part connected with the die cap or cover for relieving the pressure of the member upon the dies.

9. In a heading or upsetting machine, or the like; a plurality of co-operating dies reciprocating between different positions; a die cap or cover; a member mounted therein for separating the dies at a predetermined position; a yielding part for imparting movement to the member connected with the die cap or cover, whereby pressure is applied to the dies at the predetermined position; means connected with the die cap or cover for releasing thr pressure of the member upon the dies; and a member for actuating said means, mounted in a part independent of the die cap or cover and occupying such a position relatively o said means that the die cap or cover may be moved into and out of its operative position without disturbing the relative position o said last mentioned member.

10. In a heading or upsetting machine, or the like; a plurality of co-operating dies reciprocating betmeen different positions; a die cap or cover; a member mounted therein for separating the dies at a predetermined position; a yielding part for imparting movement to the member connected with the die cap or cover, whereby pressure is applied to the dies at the predetermined position; a-rock member mounted in the die cap or cover for releasing the pressure of the member upon the dies; and means mounted upon a part independent of the die cap or cover by which the rock member is actuated; v r

11. Ina heading or upsetting machine, or the like; a pluralitvof co-operati ng dies 1eciprocating beiween different positions; a die cap or cover; a plurality of members mounted therein for separating the dies at a predetermined position; a yielding part for each of the members imparting movementtherefo and-connected with the die cap or cover, whereby pressure is applied to the dies atthe predetermined position; a shaft mounted in the die cap or cover; a rock member on the shaft for each of the members and engaged thereby; and means, mounted in a part independent of the diecap or cover, by which the rock members are actuated synchronously and the pressure of all of the members upon the diesrelaxed at one and the same time. a

12. In a heading or upsetting machine, or the like; a plurality of co-operating dies reciprocating between different positions; a die cap or cover; a plurality of separating members mounted therein for separating the dies at a predetermined position; a yielding part for each of the separating members imparting move nent thereto and connected with the die cap or cover, whereby pressureis applied to the dies at the predetermined position; a shaft mounted in the die cap or cover; rock member mounted on said shaft for each of the separating members; and means, mounted on a part independent of the die cap or cover that engages one of the rock levers and through the latter lever transmits motion to the other rock levers, whereby the pressure of all of the separating members upon the dies is relaxed at one and the same time.

13. In a heading or upsetting machine, or the like; a plurality of co-operating dies IOU reciprocating between different positions; a

die cap or cover; a plurality of separating members mounted therein for separating the dies at a predetermined position; a yielding part for each of the separating members imparting movement thereto and connected with the die cap or cover, whereby pressure is applied to the dies at the predetermined position; a shaft mounted in the die cap or cover; a rock member mounted on said shaft for each of the separating members; and means mounted in a part independent of said die cap or cover having contact with one of said rock members and through it imparting movement to all of said rock members, and the pressure of all of the separating members upon the dies relaxed at one and the same time.

14. In a heading or upsetting machine, or the like; a plurality of cooperating dies reciprocating between difierent positions; a die cap or cover; a plurality of separating members mounted therein for separating the dies at a predetermined position; a yielding part for each oi said-separating members imparting nioven'ient thereto and connected with the die cap or cover, whereby pressure is applied to the dies at the predetermined position; a shaft mounted in the die cap or cover; a rock member mounted on said shaft for each of the separating members, one of said rock members having an additional arm thereon; means connected With the last mentioned rock member for imparting movement to the other rock members; and means mounted in a part independent of said die cap or cover having contact With said additional arm and through it imparting movement to all of said rock members, and the pressure of all of the separating members upon the dies relaxed at one and the same time.

15. In a heading or upsetting machine, or the like; a plurality of dies mounted so as to have a reciprocatory movement; means for separatingthe dies by a device applying pressure perpendicular to the path of movement of the dies at one point in such path, having no movement parallel to the path of the dies, and means for relaxing the pressure ot the separating means at all parts of the movement of the dies except at said point.

16. In a heading or upsetting machine, or the like; a plurality of dies mounted so as to have a reciprocatory movement; a die cap or cover for the dies having an opening therethrough and another opening upon one side thereof; and means for separating the dies at a predetern'iined Station, comprising mechanism mounted in and operating in both of said openings.

17. In a heading or upsetting machine, or the like; a pluralit of dies mounted so as to have a reciprora'tory movement; a die cap or cover for the dies having an opening therethrough and another opening upon one side thereof; and means for separating the dies at a predetermined station, comprising mechanism in part associated With the die cap or cover and in part with the body of the heading or upsetting machine, that portion of the mechanism mounted in the body of the heading or upsetting machine projecting into that opening in the die cap or cover upon one side of the opening extending therethrough.

18. In a heading, upsetting machine, or the like; a plurality of co-operating dies reciprocating between ditterent positions; a die on or cover for enclosing the dies upon one side; and means for separating the dies at a predetermined position, comprising elemonts movable Within the die cap or cover and elements movable in the body of the heading or upsetting machine, said elements having an operative engagement with each other when the die cap or cover is positioned; and means or moving those of said elements that are in said body toward and away from the dies to separate the dies.

In testimony whereof, I have hereunto aflixed my signature.

RICHARD LESTER IVILCOX. 

